In tunnel emergency warning systems, fast and reliable data acquisition and control are critical for maintaining roadway safety. This application uses the ICP DAS ET-7000 series to monitor field devices and control warning systems in real time over an Ethernet network.
The ET-7000 modules connect directly to devices such as cameras, smoke sensors, and transmitters to continuously collect critical safety data. When an abnormal condition is detected, the system sends digital output signals to web-based LED displays, providing clear, real-time warnings to drivers about potential hazards or obstructions ahead.
With built-in web servers and Web HMI functionality, operators can monitor and control the system remotely through a standard browser. Features such as dual watchdog protection, I/O pairing, and Modbus/TCP support ensure reliable operation in safety-critical environments.
This Ethernet-based DAQ solution demonstrates how real-time monitoring and web-enabled control can significantly enhance freeway and tunnel safety.
